Paper Keywords: bill of quantities valuation cost control completion settlement

From aspects of labor cost management, material cost management, machinery cost management and other cost management, this paper expounds the new ideas of project cost control in project construction management. This paper mainly introduces the cost control methods in each stage of project implementation under the mode of bill of quantities valuation.

With the further opening of the construction field after China's entry into WTO, the project cost calculated according to the budget quota can no longer meet the needs of the development of market economy. Bill of quantities pricing method is a pricing mode in which the tenderer provides the bill of quantities according to the unified national engineering quantity rules, and the bidder independently quotes according to the bill of quantities and the construction scheme of the proposed project, combining with their own situation and considering the risks. GBS0500——2003 "Code for Valuation of Bill of Quantities of Construction Projects" stipulates that the large and medium-sized construction projects that are wholly invested or mainly invested by state-owned funds must adopt the bill of quantities valuation model to determine the project cost. The promulgation of this standard is an important measure to deepen the reform of China's project cost management, which indicates that China's project cost management has been in line with international practices. By analyzing the characteristics of bill of quantities valuation, this paper discusses the control of project cost under this mode.

First, the bill of quantities valuation model

(A) Basic concepts

Bill of quantities is a detailed list of partial projects, measure projects, other project names and corresponding quantities of the proposed project compiled by the tenderer according to the unified project code, project name, measurement unit and engineering quantity calculation rules in the appendix of Code for Valuation of Bill of Quantities of Construction Projects, including partial bill of quantities, measure projects and other projects. It reflects the project that the tenderer requires the bidder to complete and the corresponding engineering quantity, comprehensively reflects the bid quotation requirements, is the basis of the bidder's quotation, and is an inseparable part of the bidding documents. Bill of quantities valuation in construction project bidding. The tenderee or the qualified intermediary agency entrusted by it provides the engineering quantity according to the unified national engineering quantity calculation rules, and the bidder independently quotes the price. The valuation of the bill of quantities according to the project cost valuation mode of winning the bid with low price after evaluation also refers to all the expenses required for the bidder to complete the 32-volume list provided by the tenderee. Including partial project fees, measures and project fees, other project fees and fees, taxes. That is to say, the unit price adopted in the bill of quantities valuation model is another unit price different from the current fixed quantity valuation unit price, that is, the comprehensive unit price, which refers to the labor cost, material cost, machinery use fee, management fee and profit required to complete the unit project specified in the bill of quantities, and considers the risk factors.

(B) the characteristics of the project procurement list pricing model

By formulating a unified valuation method of construction project bill of quantities, the purpose of standardizing valuation behavior is achieved. These regulations and measures are mandatory and should be observed in all aspects of engineering construction.

Mainly reflected in: first, it is stipulated that all large and medium-sized construction projects that use state-owned funds or are mainly invested by state-owned funds must be implemented in accordance with national norms; The second is to make it clear that the bill of quantities is an integral part of the tender documents, and stipulate that the tenderer must unify the project code, project name, measurement unit and calculation rules of the quantities when compiling the bill of quantities. And should be expressed in a prescribed standard format.

The measures in the Code for Valuation of Construction Engineering Bill of Quantities are only listed as "measures" in the bill of quantities. Details of specific measures, such as formwork, scaffolding, temporary facilities, construction drainage, etc. All bidders design according to the construction organization of the enterprise and quote according to the specific situation, because these projects are different among enterprises and are competitive projects for enterprises. There is no specific consumption of labor, materials and construction machinery in the Code for Valuation of Bill of Quantities of Construction Projects. Bidding enterprises can quote according to the enterprise quota and market price information, or refer to the social average consumption quota issued by the construction administrative department. The Code for Valuation with Bill of Quantities of Construction Projects gives enterprises the right to bid.

Second, the cost management under the valuation mode of bill of quantities

(A) the management of the bill of quantities

In order to ensure the accuracy of the bill of quantities, there must be a unified basis for compiling the bill of quantities, including the following aspects: engineering construction design drawings and their descriptions, design modifications, change notices and other technical materials; Relevant information on the geological, hydrological and underground conditions of the construction site; Unified engineering quantity calculation rules, engineering consumption standards, descriptions, project division and measurement units issued by the provincial construction administrative department; Tender documents and their supplementary notices and answering minutes.

The compilation of bill of quantities should be based on the entity consumption cost. When the project is valued, the consumption standard and its calculation content, method and explanation must be strictly implemented in accordance with the quota. Non-entity consumption expenses such as scaffolding, vertical transportation engineering, ultra-high subsidy, earthwork slope coefficient, temporary facilities fee, secondary transportation fee of materials, high quality and good price increase fee, and rush measures belong to construction technical measures and construction organization measures. In the project bidding documents, it appears in the form of "case" or "item", and the cost is quoted by the bidder. Except as agreed in the contract, adjustment is generally not allowed. Each sub-item of the bill of quantities shall accurately list the number of the quota, the name and content of the project, the number of the project and the engineering measurement unit. Items that need to be converted and quoted should be marked with the words "change" and "quotation" after the quota number, and explained in the project content. If "provisional amount" and "provisional quantity" are used for projects that cannot be accurately determined and calculated, they shall be explained in the bill of quantities.

After the bill of quantities is issued. If it is found that the quantities in the bill of quantities are inconsistent with the construction design drawings and bidding documents, it should be corrected through the supplementary notice of bidding or the minutes of answering questions. Supplementing the tender notice and answering minutes has the effect of finally modifying the construction design drawings, tender documents and bill of quantities.

(2) Contract price management

It has been a long time. The management of the construction contract is limited to the verification of its legality and authenticity by the administrative department for industry and commerce, but there is little supervision and inspection on the rationality of the contract cost and time limit and the actual performance, which leads to the increasing number of construction contract disputes and seriously interferes with the healthy and orderly development of the construction market. The "Interim Provisions on Contract Price of Construction Projects" recently issued by the Ministry of Construction points out that "the project cost management department should be responsible for the certification of the project contract price within the prescribed scope or participate in the visa project of the construction contract", so strengthening the contract audit management is one of the important contents for the construction administrative department and the cost management department to follow up the bidding of the bill of quantities afterwards. Winning the bid is a stage for the construction unit to choose the cost and construction conditions, and the contract visa is very important for the implementation of the cost and construction conditions. Engineering supervision and cost management departments should review and certify the contract before signing it, and check whether the contract price is consistent with the bidding price and whether the signing of other terms in the contract is consistent with the bidding documents. Whether there are unreasonable additional clauses, whether the form and time of capital contribution are reasonable, and so on. In order to ensure the legality of the subject and content of the contract, the rationality of the contract terms and safeguard the economic interests of both parties. Improve the contract performance rate.

(3) Settlement price management

In the process of project construction, the winning bidder shall adjust the contract price by handling the supplementary settlement of the project, and shall not change the winning bid price or the contract price, involving design changes, foundation treatment, economic visas, material price difference, etc. In the bill of quantities, the tenderee adopts the sub-items of "provisional amount" and "provisional quantity", and the project contractor calculates and puts forward written opinions according to the instructions of the project supervision, and can adjust the project price after being signed by the cost engineer or the project supervision engineer. After the completion of the project, the project contractor and the project subcontractor shall handle the project settlement in the way and time agreed in the construction contract. The project contractor shall put forward the review opinions according to the time agreed in the contract. And report the review opinions of project completion settlement and related settlement data to the project cost management department for approval. After approval. As the basis of project final accounts.

Third, the conclusion

In order to meet the market demand, we must constantly learn new engineering knowledge under the mode of carrying out bill of quantities valuation. Learn the advanced experience and technology in foreign cost management, combine theory with practice, and cultivate yourself into a cost worker who meets the needs of the times. Project cost control is a dynamic control process. Under the valuation condition of bill of quantities, cost control personnel must reasonably determine the cost objectives of the project at all stages of construction, and adopt practical methods and means of project cost control to effectively and reasonably control the project cost.

References:

[1] National standard "Code for Valuation of Bill of Quantities of Construction Projects" GBSO500-2003[s]

[2] Zhang Jin, Discussion on Government Project Investment Management under Bill of Quantities Valuation Mode [J], Anhui Architecture, 2004 (06): 135- 136

[3] Chen Fenglan, Guo Hui, on the owner's project cost control under the bill of quantities pricing model [J], Journal of Yangtze University, 2005(02)